Remember when you had maximum versatility with your wood lathe? Take on projects of all shapes and sizes with the WEN 2.75-Inch 4-Jaw Self-Centering Keyed Chuck. This versatile chuck features dovetailed jaws, allowing you to grip the outside of stock between 1-1/8 to 1-3/4 inches in size, or to hold internal pilot holes ranging from 1-1/2 to 2-1/8 inches in diameter. If that’s not enough, you can also install the included screw chuck depending on the task at hand. Indexed backplate indicates 24 different positions while the included tools make for easy adjustments to the chuck. The 1” x 8TPI mounting thread fits a wide variety of wood lathes, including the WEN 3420, 3420T, 3421, 3424, 3424T, 34018, 3427, 34018, 34027 and 34034. NOTE: max recommended workpiece size for 3420, 3420T, and 3421 is 4 inches.